From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 12 Apr 2001 08:46:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 12 Apr 2001 08:46:43 -0400 Received: from www.fibrespeed.net ([216.168.105.33]:43771 "HELO mail.fibrespeed.net") by vger.kernel.org with SMTP id ; Thu, 12 Apr 2001 08:46:29 -0400 Message-ID: <3AD5A399.71065F90@fibrespeed.net> Date: Thu, 12 Apr 2001 08:46:20 -0400 From: "Michael T. Babcock" X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.2.18-4.0 i686) X-Accept-Language: en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Digi Xem Problems Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I'm wondering if anyone in the Linux kernel development community has any ideas about some problems I'm having with Digi Xem boards. We've got a Digi Xem board (two different PCI boards and an ISA board were tested) in a Linux 2.2.19 machine to provide logins to Wyse terminals. When logged into the Linux machine, the Wyse terminals operate fine. If we telnet anywhere, however (including localhost), and then generate over about 1k of screen output, the output pauses until we generate input. If enter or space, etc. is hit on the Wyse keyboard, the output continues. With 2.2.5, this behaviour does not happen. We are using the epca.c driver from Digi's website (which is substantially newer than the one included in the kernel distribution). We have been unable to determine the cause of this pause. The delay is very consistent (if we generate output that causes the delay, the same output will always pause at the same point) but our driver modifications haven't helped us any. Digi's engineering staff _may_ look at this problem but since they don't officially support kernels not released by RedHat, we have no guarantees. Any ideas out there? Please CC me on replies. Thank-you. -- Michael T. Babcock (PGP: 0xBE6C1895) http://www.fibrespeed.net/~mbabcock/